lankEnglishOxford English Thesauruslank adjective 1 the man had lank, brown, greasy hair: limp, lifeless, lustreless; straggling, straggly, dull, unkempt, untidy; straight, long; informal ratty. ▷antonyms glossy, lustrous. 2 his long, lank figure: tall, thin, slender, slim, lean, lanky, skinny, spindly, spare, gangling, gangly, scrawny, skeletal, scraggy, emaciated, size-zero, bony, gaunt, raw-boned, gawky, rangy, skin-and-bones, angular, pinched, attenuated; informal weedy. ▷antonyms short, fat, stocky.lank (1) Oxford Dictionary of English